diff options
Diffstat (limited to 'fw/hid-dials/Drivers/CMSIS/DSP/Source/TransformFunctions/arm_rfft_fast_init_f32.c')
| -rw-r--r-- | fw/hid-dials/Drivers/CMSIS/DSP/Source/TransformFunctions/arm_rfft_fast_init_f32.c | 131 |
1 files changed, 0 insertions, 131 deletions
diff --git a/fw/hid-dials/Drivers/CMSIS/DSP/Source/TransformFunctions/arm_rfft_fast_init_f32.c b/fw/hid-dials/Drivers/CMSIS/DSP/Source/TransformFunctions/arm_rfft_fast_init_f32.c deleted file mode 100644 index 6f6c2f9..0000000 --- a/fw/hid-dials/Drivers/CMSIS/DSP/Source/TransformFunctions/arm_rfft_fast_init_f32.c +++ /dev/null @@ -1,131 +0,0 @@ -/* ----------------------------------------------------------------------
- * Project: CMSIS DSP Library
- * Title: arm_cfft_init_f32.c
- * Description: Split Radix Decimation in Frequency CFFT Floating point processing function
- *
- * $Date: 27. January 2017
- * $Revision: V.1.5.1
- *
- * Target Processor: Cortex-M cores
- * -------------------------------------------------------------------- */
-/*
- * Copyright (C) 2010-2017 ARM Limited or its affiliates. All rights reserved.
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the License); you may
- * not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an AS IS BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "arm_math.h"
-#include "arm_common_tables.h"
-
-/**
- * @ingroup groupTransforms
- */
-
-/**
- * @addtogroup RealFFT
- * @{
- */
-
-/**
-* @brief Initialization function for the floating-point real FFT.
-* @param[in,out] *S points to an arm_rfft_fast_instance_f32 structure.
-* @param[in] fftLen length of the Real Sequence.
-* @return The function returns ARM_MATH_SUCCESS if initialization is successful or ARM_MATH_ARGUMENT_ERROR if <code>fftLen</code> is not a supported value.
-*
-* \par Description:
-* \par
-* The parameter <code>fftLen</code> Specifies length of RFFT/CIFFT process. Supported FFT Lengths are 32, 64, 128, 256, 512, 1024, 2048, 4096.
-* \par
-* This Function also initializes Twiddle factor table pointer and Bit reversal table pointer.
-*/
-arm_status arm_rfft_fast_init_f32(
- arm_rfft_fast_instance_f32 * S,
- uint16_t fftLen)
-{
- arm_cfft_instance_f32 * Sint;
- /* Initialise the default arm status */
- arm_status status = ARM_MATH_SUCCESS;
- /* Initialise the FFT length */
- Sint = &(S->Sint);
- Sint->fftLen = fftLen/2;
- S->fftLenRFFT = fftLen;
-
- /* Initializations of structure parameters depending on the FFT length */
- switch (Sint->fftLen)
- {
- case 2048U:
- /* Initializations of structure parameters for 2048 point FFT */
- /* Initialise the bit reversal table length */
- Sint->bitRevLength = ARMBITREVINDEXTABLE_2048_TABLE_LENGTH;
- /* Initialise the bit reversal table pointer */
- Sint->pBitRevTable = (uint16_t *)armBitRevIndexTable2048;
- /* Initialise the Twiddle coefficient pointers */
- Sint->pTwiddle = (float32_t *) twiddleCoef_2048;
- S->pTwiddleRFFT = (float32_t *) twiddleCoef_rfft_4096;
- break;
- case 1024U:
- Sint->bitRevLength = ARMBITREVINDEXTABLE_1024_TABLE_LENGTH;
- Sint->pBitRevTable = (uint16_t *)armBitRevIndexTable1024;
- Sint->pTwiddle = (float32_t *) twiddleCoef_1024;
- S->pTwiddleRFFT = (float32_t *) twiddleCoef_rfft_2048;
- break;
- case 512U:
- Sint->bitRevLength = ARMBITREVINDEXTABLE_512_TABLE_LENGTH;
- Sint->pBitRevTable = (uint16_t *)armBitRevIndexTable512;
- Sint->pTwiddle = (float32_t *) twiddleCoef_512;
- S->pTwiddleRFFT = (float32_t *) twiddleCoef_rfft_1024;
- break;
- case 256U:
- Sint->bitRevLength = ARMBITREVINDEXTABLE_256_TABLE_LENGTH;
- Sint->pBitRevTable = (uint16_t *)armBitRevIndexTable256;
- Sint->pTwiddle = (float32_t *) twiddleCoef_256;
- S->pTwiddleRFFT = (float32_t *) twiddleCoef_rfft_512;
- break;
- case 128U:
- Sint->bitRevLength = ARMBITREVINDEXTABLE_128_TABLE_LENGTH;
- Sint->pBitRevTable = (uint16_t *)armBitRevIndexTable128;
- Sint->pTwiddle = (float32_t *) twiddleCoef_128;
- S->pTwiddleRFFT = (float32_t *) twiddleCoef_rfft_256;
- break;
- case 64U:
- Sint->bitRevLength = ARMBITREVINDEXTABLE_64_TABLE_LENGTH;
- Sint->pBitRevTable = (uint16_t *)armBitRevIndexTable64;
- Sint->pTwiddle = (float32_t *) twiddleCoef_64;
- S->pTwiddleRFFT = (float32_t *) twiddleCoef_rfft_128;
- break;
- case 32U:
- Sint->bitRevLength = ARMBITREVINDEXTABLE_32_TABLE_LENGTH;
- Sint->pBitRevTable = (uint16_t *)armBitRevIndexTable32;
- Sint->pTwiddle = (float32_t *) twiddleCoef_32;
- S->pTwiddleRFFT = (float32_t *) twiddleCoef_rfft_64;
- break;
- case 16U:
- Sint->bitRevLength = ARMBITREVINDEXTABLE_16_TABLE_LENGTH;
- Sint->pBitRevTable = (uint16_t *)armBitRevIndexTable16;
- Sint->pTwiddle = (float32_t *) twiddleCoef_16;
- S->pTwiddleRFFT = (float32_t *) twiddleCoef_rfft_32;
- break;
- default:
- /* Reporting argument error if fftSize is not valid value */
- status = ARM_MATH_ARGUMENT_ERROR;
- break;
- }
-
- return (status);
-}
-
-/**
- * @} end of RealFFT group
- */
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